Time Travel: Go Down the Mountain to Catch the Devil

Li Lixuan, who traveled through time, practiced in a sect called Qingzhu Sect and became a slightly famous senior brother in the sect. Suddenly, a demon appears in the most famous demon sect in the world. The demon kills dozens of innocent people, but then escapes and hides. The famous decent sects planned to unite to capture the demon, so the Qingzhu Sect where Li Lixuan belonged sent him and another senior brother each to lead a junior brother down the mountain to assist other sects in capturing the demon. Moreover, Li Lixuan learned that the main purpose of the sect leader sending him down the mountain was not to capture the devil, but... At the same time, the devil is cunning and has internal helpers from the evil sect. In an accident, Li Lixuan's junior brother fell into the hands of the devil. How will the junior brother be dealt with by the devil, and what will Li Lixuan do?